Netbeans does not show my code

Question

I worked in the project for a long time, but after a power outage and a computer shutdown.

The code in one of my frames is not shown correctly, it looks like this:

I have a GUI and its form is fine. When I run a frame from the main interface, it works, but, as I said, the code is corrupted. I do not know why. If anyone has any solution for this problem would be very helpful.

Answer 1

In the Netbeans IDE,

(Ctrl + 1), file- > → . . .

netbeans , . Netbeans 7.3